1.a path over which electrical signals can passa channel is typically what you rent from a telephone company2.a passage for water (or other fluids) to flow throughthe fields were crossed with irrigation channelsgutters carried off the rainwater into a series of channels under the street3.a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)4.a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vesselsthe ship went aground in the channel5.(often plural) a means of communication or accessit must go through official channels6.a bodily passage or tube lined with epithelial cells and conveying a secretion or other substancepoison is released through a channel in the snake's fangs7.a television station and its programsa satellite TV channelsurfing through the channelsthey offer more than one hundred channels8.a way of selling a company's product either directly or via distributorspossible distribution channels are wholesalers or small retailers or retail chains or direct mailers or your own stores

'channel' - used as a verb9.transmit or serve as the medium for transmission10.direct the flow ofchannel information towards a broad audience11.send from one person or place to another

In the 1940s, the FCC assigned television's Channel 1 to mobile Services
(two-way radios in taxicabs, for instance) but did not re-number the
other
channel assignments. That is why your TV set has channels 2 and up, but
no
channel 1.